Fuse for projectiles



- Aug. 6, 19 9. A. F. TEITSCHEIb I 7 1,723,315

FUSE FOR PROJECTILES Filed Oct. 10, 1928 awuantoa Alfred P. Teitscheicl Patented Aug. 6, 1929.

UNITE sr "r ALFRED TEITSCHEID, OF WHARTON, NEW JERSEY.

FUSE FOR PROJECTILES.

Application filed October 10, 1928.

The subject of this invention is a fuse for projectiles.

The object of the present invention 18 to provide a combination instantaneous and derlay action fuse in which detonation may be permitted axially thereof and whose structure is of such a character that the elements entering in the formation of the fuse container may be loaded as units and then readily assembled.

With the foregoing and other 0b ects in view, my invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter clescribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is illustrated in the accompanying drawing, wherein:

Fig. 1 is a longitudinal sectional view through the improved fuse;

Fig. 2 is a detail view on the line 2-2 of Fig. 1.

Referring to the drawing by numerals of reference:

The fuse container comprises essentially four elements, namely a base 5, a head 6, a body 7 to which the base and head are attached and a booster casing 8 secured to the base. The body 7 is a hollow member whose ends are tapped to threadedly receive the base and the head which are formed with shoulders, respectively 9 and 10 to seat against the ends of the body and form an unbroken profile of the fuse container. The inner portions of the base and head are formed into tubular extensions, respectively 11 and 12, the former fitting into the latter and establishing a flash tube. The extremities of the extensions are unconfined so that the shock on impact will be taken by the body 7 and will not cause disruption of the flash tube.

The head 6 carries a complete instantaneous firing mechanism comprising an impact striker 13 and a primer detonator l4 retained by a plug 15 threaded in the extension 12. The striker is held safe by a shear pin 16 and also by means of a centrifugally releasable locking device comprising half blocks 17 interposed between the striker head 18 and the forward face of the fuse head and encircled by a tape 19 having a weighted Serial No. 311,632.

end 20. Release and removal of the tape and blocks is prevented by a cap 21 threaded to the fuse head. The cap is only removed when the fuse is to be functioned through the instantaneous firing mechanism.

The base member 5 of the fuse is formed with a cavity 22 in its rear portion through which an axially disposed detonator 23 and an eccentrically disposed primer 2 f are inserted in place in the base forwardly of the cavity. Communication between the primer and detonator is established by a transverse passage 25.

Mounted in the cavity 22 is a carrier 26- having an enlarged annular head 27 threaded to the base and a reduced cylindrical portion 28 which seats on the floor of the cavity and retains the detonator 23 in place. The carrier is formed with an axial passage in which may be placed a column of explosive 29. An annular plunger 30 is mounted on the reduced portion 28 of the carrier and is normally held in the unarmed position against the head 27 of the carrier by a spring 31 and also by a centrifugally .releasable pin 32. For the purpose of holding the plunger against the action of its spring prior to assembling the carrier, a headed bolt 33 is passed through the plunger and threaded into a prepared aperture in the base. This likewise insures a correct alinement with the primer 24 of a firing pin 34 fixed in the plunger and preferably having its point introduced into a guide plug 35 adjacent the primer. The bolt 33 and the firing pin 34- thus prevent rotary movement of the plunger when it is displaced forwardly on impact. The pin 34 and primer 24 constitute the delay firing mechanism.

The booster casing 8 is threaded into an annular extension 36 of the base until brought up against the carrier 26. The casing 8 carries a booster charge 37 and a pivotally mounted rotor 39 which functions in an accepted manner during flight to position a detonator 4O axially of the fuse.

From the foregoing it will be clear how the head' and base may each be loaded with one of the firing mechanisms, and the fuse assembled by threading these elements to the body 7 and then finally attaching the booster casing. V

I claim:

1. In a fuse, a hollow body, a head attached to one end of the body, a base attached to the other end of the body, said base formed with a tubular extension on its inner portion and a cavity in its outer portion, a detonator disposed axially in the base, a carrier attached to the base and disposed in the cavity thereof, said carrier having a reduced portion retaining the detonator, an axial explosive train in the carrier, an annular plunger embracing the reduced portion tached to the other end of the body, said base formedwith a cavity in' its outer portion, a detonator disposed axially in the base, a carrier attached to the base and disposed in the cavity thereof, said carrier having a reduced port-ion, an annular plunger embracing the reduced portion of the carrier, a firing pin carried by the plunger, a primer carried by the base adjacent the detonation and having communication with the foremost part of the detonator, a boostercasing secured to the base in rear of the carrier and an nstantaneous firing mechanism mounted in the head.

3. In a fuse, a hollowbody, a head at tached to one end of the body, a base attached to the other endvof the body, said baseformed with a cavity in its outer portion, a detonator disposed axially in the base, i

a carrier attached to the base and disposed in the cavity thereof, said carrier having a reduced portion, an annular plunger embracing the reduced portion of the carrier,

a firing pin carried by the base adjacent the detonator and having communication with the foremost part of the detonator.

4. In a. fuse, a hollow body, a head-attached to one end of the body and having a tubular extension, a base attached to the other end of the body and having a tubular extension engaging with the extension'of' the head, the ends of the extension being unrestrained, an instantaneous firing mechanism in the head and a delay firing mechanism in the base.

5. vIn a fuse, a body, a head attached to 7 one end of the body, a attached to,

the other end of the body, the adjacent ends,

of the head and base cooperating to form a flash tube, a firing mechanism carriedby the nose and a firing mechanism carried by the base.

I 6. In a fuse, a casing formed with a cavity, a detonatorydisposedaxially'in the a carrier attachedto the casing and j casing,

disposed in the cavity thereof, said carrier having a reduced. ortion retaining the-detonator, an axial explosive train in the ca'rg rier, an. annular plunger embracing the; 3 reduced portion of the carrier, a firing pin fixed in theplunger and a primer carried by the casing adjacent the detonator and having communication with the detonator. I

7 In a fuse, a casing formed with a cavity, a detonator disposed axially in the;

casing, a carrier attached to the casingand disposed in the cavity thereof, said carrie having a reduced portion, an annular plunger embracing the reduced portion'of 3 the carrier, a firing pin fixed in the plunger and a primer carried by the casing adjacent communication the detonator and having with the detonator.

ALFRED F. TEITSCHEID. 

